The Newark, N.J. mayor is now on day three of his self-imposed food stamp challenge. Inspired by a Twitter spat about the responsibility of government to provide food for its people, Booker decided to live for a week on the monetary equivalent of food stamps. He had $30 for the whole week -- a mere $4.32 a day -- to pay for all of his meals and beverages.

After a few days of eating mostly vegetable-based foods, Booker is famished. "The constrained food options I have for this one short week highlight for me (with the hunger pains I felt today between small meals) what many hardworking families have to deal with week after week," he wrote on his blog.

"Not being able to stop and drop a few dollars for a Venti coffee or Diet Mountain Dew is really raising my consciousness about the food choices I often take for granted," Booker observed.

On Thursday, Booker shared this photo on Instagram: "Preparing meals for my 3rd day of #SNAPChallenge."

He's also starting to regret some of his purchases.

"The second day on the #SNAPChallenge, I ate salad for breakfast, a can of peas and corn mixed together for lunch, and cauliflower, broccoli and a sweet potato for dinner," he wrote. "In hindsight, investing more of my SNAP budget in eggs, and perhaps some coffee might have helped me later in the week. I am growing concerned about running out of food before this is over -- especially as I try to resist the urge now to have another sweet potato before I go to bed tonight."

Here's what Booker started out with at the beginning of his challenge.

Hang in there Booker! Four more days to go.

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Politicians' Science Gaffes

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"I have flown twice over Mount St. Helens out on our West Coast. I'm not a scientist and I don't know the figures, but I have a suspicion that that one little mountain has probably released more sulfur dioxide into the atmosphere of the world than has been released in the last ten years of automobile driving or things of that kind that people are so concerned about."
- President Ronald Reagan, 1980
Not quite. Cars emit about 81,000 tons of sulfur dioxide per day, while Mount St. Helens emitted only about 2,000 tons.

"The internet is not something you just dump something on. It's not a truck. It's a series of tubes."
-Sen. Ted Stevens (R-Alaska), 2006
The "series of tubes" phrase subsequently became a pop cultural catchphrase--it even has its own Wikipedia page and mentioned in the Urban Dictionary.

"And sometimes these dollars go to projects that have little or nothing to do with the public good, things like fruit fly research in Paris, France. I kid you not."
- former Gov. Sarah Palin (R-Alaska), 2008
The common fruit fly is one of the most commonly used organisms in genetic research. Discoveries such as sex-linked inheritance and techniques such as gene mapping are a result of such research.

"Information is moving--you know, nightly news is one way, of course, but it's also moving through the blogosphere and through the Internets."
- President George W. Bush, 2007
The former president went on to use the word "Internets" two more times in public.

"Is there some thought being given to subsidizing the clearing of rainforests in order for some countries to eliminate that production of greenhouse gases?"
-Rep. Dana Rohrabacher (R-California), when asked whether the U.S. climate policy should focus on reducing carbon emissions.
Rainforests actually absorb far more carbon dioxide than they emit.

"Scientists all over this world say that the idea of human-induced global climate change is one of the greatest hoaxes perpetrated out of the scientific community. It is a hoax. There is no scientific consensus."
- Rep. Paul Broun (R-Georgia), 2009, at a debate over the Clean Energy and Security Act.
Many researchers point to a decline in Arctic sea ice, an increase in droughts, and changing rain and snow patterns as signs of climate change.

"What the science says is that temperatures peaked out globally in 1998. So we've gone for 10-plus years where the temperatures have gone down."
- Rep. Jim Sensenbrenner (R-Wisconsin), 2009 in an interview with conservative radio show host Jay Weber.
The mean global temperature has in fact been increasing since 1998.

"Mars is essentially in the same orbit [as Earth]....Mars is somewhat the same distance from the sun, which is very important. We have seen pictures where there are canals, we believe, and water. If there is water, that means there is oxygen. If oxygen, that means we can breathe."
- Dan Quayle, former vice president, commenting on President George H.W. Bush's Space Exploration Initiative as quoted in This New Ocean by William E. Burrows.
Actually, Mars completes an orbital revolution around the sun about every 1.88 Earth years, according to NASA.

"All that stuff I was taught about evolution and embryology and the big bang theory, all that is lies straight from the pit of Hell."
-Rep. Paul Broun (R-Ga.) 2012
Broun, a member of the House Committee on Science, Space, and Technology, is a doctor, and would have been taught many of the generally accepted principles of evolution and embryology in medical school.